In trying to cut a bar-code-like pattern on card stock at high resolution using the engrave operation, I tried exporting the 0.002 inch stroke, color black, as a png with 1355 DPI resolution. This was then used in an engrave operation with LPI of 270. This file was run three times with some parameter changes in an attempt to decrease the power used. Using speed 500, power 100, with Grayscale set to Vary Power, too much power always resulted.
The more serious problem occurred on the fourth attempt to run the unchanged artwork. Now the maximum value allowed for LPI is 195.
Any suggestions as to how to fix this?
I am not able to afford the $600/year Premium subscription and wonder if my Glowforge performance specifications have been changed.